/*
-----------------------------------------------------------------------------
This source file is part of OGRE-Next
    (Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org/

Copyright (c) 2000-2014 Torus Knot Software Ltd

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
-----------------------------------------------------------------------------
*/

namespace Ogre
{
    inline ArrayReal BooleanMask4::getMask( bool x, bool y, bool z, bool w )
    {
        size_t idx = (size_t)x | ( (size_t)y << 1 ) | ( (size_t)z << 2 ) | ( (size_t)w << 3 );
        return mMasks[idx];
    }
    //--------------------------------------------------------------------------------------
    inline ArrayReal BooleanMask4::getMask( bool b[4] )
    {
        size_t idx = (size_t)b[0] | ( (size_t)b[1] << 1 ) | ( (size_t)b[2] << 2 ) | ( (size_t)b[3] << 3 );
        return mMasks[idx];
    }
    //--------------------------------------------------------------------------------------
    inline ArrayMaskR BooleanMask4::getAllSetMask()
    {
        return mMasks[MASK_XYZW];
    }
    //--------------------------------------------------------------------------------------
    inline bool BooleanMask4::allBitsSet( bool mask0[4], bool mask1[4] )
    {
        static_assert( sizeof(bool) == 1 && sizeof(uint32) == 4,
                       "This code relies on correct casting!" );
        return ( *reinterpret_cast<uint32*>(mask0) & *reinterpret_cast<uint32*>(mask1) ) == 0x01010101;
    }
    //--------------------------------------------------------------------------------------
    inline uint32 BooleanMask4::getScalarMask( ArrayReal mask )
    {
        return static_cast<uint32>( _mm_movemask_ps( mask ) );
    }
    //--------------------------------------------------------------------------------------
    inline uint32 BooleanMask4::getScalarMask( ArrayInt mask )
    {
        return static_cast<uint32>( _mm_movemask_ps( _mm_castsi128_ps( mask ) ) );
    }

    #define IS_SET_MASK_X( intMask ) ((intMask & MASK_W) != 0)
    #define IS_SET_MASK_Y( intMask ) ((intMask & MASK_Z) != 0)
    #define IS_SET_MASK_Z( intMask ) ((intMask & MASK_Y) != 0)
    #define IS_SET_MASK_W( intMask ) ((intMask & MASK_X) != 0)

    #define MASK_ALL_BITS_SET 4

    #define IS_BIT_SET( bit, intMask ) ( (intMask & (1 << bit) ) != 0)
}
